id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
5558,"concat protocol should run in ""-safe 0"" mode by default",GrayFace,,"Summary of the bug:
It's very hard for me to imagine a task for which ""-safe 1"" makes sense. It probably involves list being obtained from outside source instead of being generated. What's for sure is that it's a sophisticated task for which figuring out and specifying additional parameters is not a problem.
For all regular users of ""concat"" option (me included) the ""safe mode"" brings only troubles, e.g. https://ffmpeg.org/pipermail/ffmpeg-user/2016-April/031560.html
No one knows why it's there, because the documentation doesn't say anything about rationale: https://www.ffmpeg.org/ffmpeg-formats.html#Options
Obviously, no backward compatibility.
How to reproduce:
{{{
% ffmpeg -nostats -f concat -i List.txt -c copy output
(List.txt contains absolute paths)
ffmpeg version N-79947-gcd244fa
built on 20160512
}}}",defect,closed,important,avformat,git-master,wontfix,concat regression,,,,0,0